/* ===================================================================
   BIZGRAM ENGINEERING — Design tokens
   =================================================================== */
:root{
  --navy:        #0A1F3D;
  --navy-deep:   #071730;
  --navy-mid:    #12305C;
  --blue:        #1E5FEC;
  --blue-bright: #3B82F6;
  --signal:      #00C7B1;
  --bg:          #FFFFFF;
  --bg-alt:      #F4F7FB;
  --text:        #16233A;
  --text-muted:  #5B6B82;
  --border:      #E3E9F2;
  --white:       #FFFFFF;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'IBM Plex Mono', monospace;

  --radius: 10px;
  --shadow-card: 0 1px 2px rgba(10,31,61,0.04), 0 8px 24px -12px rgba(10,31,61,0.12);
  --shadow-lift: 0 10px 30px -10px rgba(10,31,61,0.28);
  --ease: cubic-bezier(.22,.61,.36,1);
}

*, *::before, *::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *, *::before, *::after{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

body{
  margin:0;
  font-family:var(--font-body);
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; }
h1,h2,h3,h4{ font-family:var(--font-display); margin:0; color:var(--navy); }
p{ margin:0 0 1em; color:var(--text-muted); }
p:last-child{ margin-bottom:0; }
.mono{ font-family:var(--font-mono); letter-spacing:0.04em; }

:focus-visible{
  outline:2px solid var(--blue-bright);
  outline-offset:3px;
  border-radius:4px;
}

.eyebrow{
  display:block;
  font-size:0.78rem;
  font-weight:500;
  color:var(--blue);
  text-transform:uppercase;
  margin-bottom:0.9rem;
}

.section{ padding:6.5rem 0; }
.section-alt{ background:var(--bg-alt); }
.section-inner{ max-width:1180px; margin:0 auto; padding:0 1.75rem; }
.section-title{ font-size:clamp(1.9rem, 3.4vw, 2.7rem); line-height:1.18; font-weight:600; max-width:640px; }
.section-lede{ max-width:560px; margin-top:1rem; font-size:1.05rem; }

/* ===================================================================
   Signature motif — Signal Path
   =================================================================== */
.signal-path{
  fill:none;
  stroke:var(--signal);
  stroke-width:2;
  stroke-linecap:round;
  stroke-dasharray:8 10;
  animation:signal-travel 5.5s linear infinite;
  opacity:0.85;
}
@keyframes signal-travel{
  to{ stroke-dashoffset:-360; }
}
.signal-node{
  fill:var(--signal);
  animation:signal-pulse 3s ease-in-out infinite;
}
@keyframes signal-pulse{
  0%,100%{ opacity:0.35; r:3; }
  50%{ opacity:1; r:5; }
}
.signal-divider{ width:100%; line-height:0; margin:4.5rem 0 0; }
.signal-divider svg{ width:100%; height:32px; display:block; }
.signal-divider-vertical{ margin-top:2.5rem; }
.signal-divider-footer{ margin:0; background:var(--navy-deep); }
.signal-divider-footer .signal-path{ stroke:var(--signal); opacity:0.6; }

/* ===================================================================
   Buttons
   =================================================================== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:0.5rem;
  padding:0.85rem 1.7rem;
  border-radius:999px;
  font-weight:600;
  font-size:0.95rem;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), color .25s var(--ease);
}
.btn-primary{
  background:var(--blue);
  color:var(--white);
  box-shadow:0 6px 20px -6px rgba(30,95,236,0.55);
}
.btn-primary:hover{ background:var(--blue-bright); transform:translateY(-2px); box-shadow:0 10px 26px -6px rgba(30,95,236,0.6); }
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,0.55);
  color:var(--white);
}
.btn-ghost:hover{ border-color:#fff; background:rgba(255,255,255,0.08); transform:translateY(-2px); }
.btn-block{ width:100%; }

/* ===================================================================
   Header
   =================================================================== */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  padding:1.1rem 0;
  transition:padding .3s var(--ease), background .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header.is-scrolled{
  padding:0.65rem 0;
  background:rgba(10,31,61,0.92);
  backdrop-filter:blur(10px);
  box-shadow:0 4px 20px -8px rgba(0,0,0,0.35);
}
.header-inner{
  max-width:1180px; margin:0 auto; padding:0 1.75rem;
  display:flex; align-items:center; justify-content:space-between;
}
.logo{ display:flex; align-items:center; gap:0.6rem; color:var(--white); }
.logo-mark{ color:var(--signal); display:flex; }
.logo-text{
  font-family:var(--font-display); font-weight:700; letter-spacing:0.02em;
  font-size:1.1rem; color:var(--white); display:flex; flex-direction:column; line-height:1.05;
}
.logo-text-thin{ font-weight:400; font-size:0.62rem; letter-spacing:0.28em; color:var(--signal); margin-top:2px; }

.main-nav{ display:flex; align-items:center; gap:2rem; }
.nav-link{
  color:rgba(255,255,255,0.82); font-size:0.95rem; font-weight:500;
  position:relative; padding:0.3rem 0;
}
.nav-link::after{
  content:''; position:absolute; left:0; bottom:-2px; width:0; height:2px;
  background:var(--signal); transition:width .25s var(--ease);
}
.nav-link:hover{ color:var(--white); }
.nav-link:hover::after{ width:100%; }
.nav-cta{
  background:var(--blue); color:var(--white); padding:0.55rem 1.3rem;
  border-radius:999px; font-size:0.9rem; font-weight:600;
  transition:background .25s var(--ease), transform .25s var(--ease);
}
.nav-cta:hover{ background:var(--blue-bright); transform:translateY(-1px); }

.nav-toggle{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:36px; height:36px; background:none; border:none; cursor:pointer; padding:0;
}
.nav-toggle span{ display:block; height:2px; width:100%; background:var(--white); transition:transform .3s var(--ease), opacity .3s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ===================================================================
   Hero
   =================================================================== */
.hero{
  position:relative;
  min-height:100vh;
  display:flex; align-items:center;
  overflow:hidden;
  background:var(--navy-deep);
}
.hero-slider{ position:absolute; inset:0; }
.hero-slide{
  position:absolute; inset:0;
  background-size:cover; background-position:center;
  opacity:0;
  transform:scale(1.06);
  transition:opacity 1.6s var(--ease), transform 8s linear;
}
.hero-slide.is-active{ opacity:1; transform:scale(1); }
.hero-overlay{
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(7,23,48,0.75) 0%, rgba(7,23,48,0.6) 45%, rgba(7,23,48,0.92) 100%),
    linear-gradient(100deg, rgba(7,23,48,0.9) 10%, rgba(7,23,48,0.35) 60%);
}
.signal-overlay{
  position:absolute; left:0; right:0; bottom:0; width:100%; height:140px;
  opacity:0.5;
}
.hero-content{
  position:relative; z-index:2;
  max-width:1180px; margin:0 auto; padding:8rem 1.75rem 5rem;
  width:100%;
}
.hero-title{
  color:var(--white);
  font-size:clamp(2.4rem, 5.5vw, 4.1rem);
  font-weight:600;
  line-height:1.12;
  max-width:800px;
  margin-bottom:1.5rem;
}
.hero-title span{ color:var(--signal); }
.hero-sub{
  color:rgba(255,255,255,0.82);
  font-size:1.1rem;
  max-width:560px;
  margin-bottom:2.2rem;
}
.hero-actions{ display:flex; gap:1rem; flex-wrap:wrap; }

.hero-dots{
  position:absolute; z-index:3; bottom:2rem; left:50%; transform:translateX(-50%);
  display:flex; gap:0.55rem;
}
.hero-dots button{
  width:8px; height:8px; border-radius:50%;
  background:rgba(255,255,255,0.35); border:none; cursor:pointer; padding:0;
  transition:background .3s var(--ease), transform .3s var(--ease);
}
.hero-dots button.is-active{ background:var(--signal); transform:scale(1.3); }

/* ===================================================================
   Stats strip
   =================================================================== */
.stats-strip{ background:var(--navy); }
.stats-inner{
  max-width:1180px; margin:0 auto; padding:2.6rem 1.75rem;
  display:grid; grid-template-columns:repeat(4,1fr); gap:1.5rem;
}
.stat{ display:flex; flex-direction:column; gap:0.35rem; text-align:center; }
.stat-num{ color:var(--signal); font-size:1.9rem; font-weight:500; }
.stat-unit{ font-size:1rem; color:rgba(255,255,255,0.5); margin-left:2px; }
.stat-label{ color:rgba(255,255,255,0.72); font-size:0.85rem; }

/* ===================================================================
   About
   =================================================================== */
.about-grid{
  display:grid; grid-template-columns:1.1fr 0.9fr; gap:3rem;
  margin-top:2.8rem; align-items:start;
}
.about-copy p{ font-size:1.02rem; }
.track-record{
  background:var(--navy);
  border-radius:var(--radius);
  padding:2.1rem;
  position:relative;
  overflow:hidden;
}
.track-record::before{
  content:''; position:absolute; top:0; right:0; width:120px; height:120px;
  background:radial-gradient(circle at top right, rgba(0,199,177,0.25), transparent 70%);
}
.track-record-tag{
  display:inline-block; color:var(--signal); font-size:0.72rem; margin-bottom:0.9rem;
}
.track-record h3{ color:var(--white); font-size:1.25rem; margin-bottom:0.9rem; line-height:1.35; }
.track-record p{ color:rgba(255,255,255,0.78); font-size:0.95rem; }
.track-record strong{ color:var(--white); }

.leadership{ margin-top:1rem; }
.leaders-grid{
  display:grid; grid-template-columns:1fr 1fr; gap:1.75rem; margin-top:1.5rem;
}
.leader-card{
  background:var(--bg); border:1px solid var(--border); border-radius:var(--radius);
  padding:2rem; box-shadow:var(--shadow-card);
  transition:transform .3s var(--ease), box-shadow .3s var(--ease);
}
.leader-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-lift); }
.leader-avatar{
  width:52px; height:52px; border-radius:50%;
  background:var(--navy); color:var(--signal);
  display:flex; align-items:center; justify-content:center;
  font-size:0.95rem; font-weight:500; margin-bottom:1.1rem;
}
.leader-card h4{ font-size:1.15rem; margin-bottom:0.15rem; }
.leader-role{ color:var(--blue); font-size:0.85rem; font-weight:600; margin-bottom:0.9rem; }
.leader-card p:not(.leader-role){ font-size:0.95rem; }

/* ===================================================================
   Services
   =================================================================== */
.services-category{ margin-top:3.5rem; }
.services-category:first-of-type{ margin-top:2.8rem; }
.services-category-head{
  display:flex; align-items:center; gap:0.8rem; margin-bottom:1.5rem;
}
.cat-icon{
  width:44px; height:44px; border-radius:10px;
  background:var(--navy); color:var(--signal);
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
.services-category-head h3{ font-size:1.35rem; }
.services-grid{
  display:grid; grid-template-columns:repeat(auto-fit, minmax(220px,1fr)); gap:1.25rem;
}
.service-card{
  background:var(--bg); border:1px solid var(--border); border-radius:var(--radius);
  padding:1.6rem; transition:transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.section-alt .service-card{ background:var(--bg); }
.service-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-card); border-color:var(--blue); }
.service-icon{
  width:38px; height:38px; border-radius:8px;
  background:var(--bg-alt); color:var(--blue);
  display:flex; align-items:center; justify-content:center; margin-bottom:1rem;
}
.section-alt .service-icon{ background:var(--bg); }
.service-card h4{ font-size:1.02rem; margin-bottom:0.5rem; }
.service-card p{ font-size:0.9rem; margin:0; }

/* ===================================================================
   Contact
   =================================================================== */
.contact-grid{
  display:grid; grid-template-columns:0.85fr 1.15fr; gap:3.5rem;
  margin-top:2.8rem;
}
.info-row{ display:flex; gap:1rem; margin-bottom:1.9rem; }
.info-icon{
  width:42px; height:42px; border-radius:50%; flex-shrink:0;
  background:var(--bg-alt); color:var(--blue);
  display:flex; align-items:center; justify-content:center;
}
.info-row h4{ font-size:0.95rem; margin-bottom:0.3rem; }
.info-row p{ font-size:0.95rem; }
.info-row a:hover{ color:var(--blue); }
.hours-note{ color:var(--blue); font-size:0.85rem; font-weight:500; }

.contact-form{
  background:var(--bg-alt); border-radius:var(--radius);
  padding:2.2rem; border:1px solid var(--border);
}
.form-row{ margin-bottom:1.3rem; }
.form-row label{ display:block; font-size:0.85rem; font-weight:600; color:var(--navy); margin-bottom:0.45rem; }
.form-row input, .form-row textarea{
  width:100%; padding:0.8rem 1rem; border-radius:8px; border:1.5px solid var(--border);
  font-family:var(--font-body); font-size:0.95rem; background:var(--white); color:var(--text);
  transition:border-color .25s var(--ease), box-shadow .25s var(--ease);
  resize:vertical;
}
.form-row input:focus, .form-row textarea:focus{
  outline:none; border-color:var(--blue); box-shadow:0 0 0 3px rgba(30,95,236,0.14);
}
.form-note{ font-size:0.8rem; color:var(--text-muted); margin-top:0.9rem; text-align:center; }

/* Honeypot — visually hidden (not display:none, which some bots detect) */
.hp-field{
  position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;
}

.form-status{
  display:none;
  font-size:0.9rem; font-weight:500;
  padding:0.8rem 1rem; border-radius:8px;
  margin-bottom:1.1rem;
}
.form-status.is-visible{ display:block; }
.form-status.is-success{ background:rgba(0,199,177,0.12); color:#00806f; border:1px solid rgba(0,199,177,0.35); }
.form-status.is-error{ background:rgba(220,38,38,0.08); color:#b91c1c; border:1px solid rgba(220,38,38,0.3); }

.btn[disabled]{ opacity:0.65; cursor:not-allowed; transform:none !important; }

.captcha-widget{
  display:flex; align-items:center; gap:0.6rem; margin-bottom:0.7rem;
}
.captcha-image{
  border-radius:8px; border:1.5px solid var(--border);
  background:var(--bg-alt); display:block;
}
.captcha-refresh{
  width:40px; height:40px; flex-shrink:0; border-radius:8px;
  background:var(--white); border:1.5px solid var(--border);
  color:var(--blue); display:flex; align-items:center; justify-content:center;
  cursor:pointer; transition:background .2s var(--ease), transform .2s var(--ease), border-color .2s var(--ease);
}
.captcha-refresh:hover{ background:var(--bg-alt); border-color:var(--blue); transform:rotate(90deg); }

/* ===================================================================
   Footer
   =================================================================== */
.site-footer{ background:var(--navy-deep); }
.footer-inner{
  max-width:1180px; margin:0 auto; padding:3.5rem 1.75rem 2.5rem;
  display:grid; grid-template-columns:1.2fr 1fr 1fr; gap:2rem;
}
.footer-brand p{ color:rgba(255,255,255,0.55); font-size:0.85rem; margin-top:0.6rem; }
.footer-brand .logo-text{ color:var(--white); }
.footer-links{ display:flex; flex-direction:column; gap:0.7rem; }
.footer-links a{ color:rgba(255,255,255,0.72); font-size:0.92rem; transition:color .25s var(--ease); }
.footer-links a:hover{ color:var(--signal); }
.footer-legal{ color:rgba(255,255,255,0.5); font-size:0.78rem; text-align:right; }
.footer-legal p{ margin-bottom:0.4rem; color:inherit; }

/* ===================================================================
   Scroll reveal
   =================================================================== */
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible{ opacity:1; transform:translateY(0); }

/* ===================================================================
   Responsive
   =================================================================== */
@media (max-width: 900px){
  .about-grid{ grid-template-columns:1fr; }
  .leaders-grid{ grid-template-columns:1fr; }
  .contact-grid{ grid-template-columns:1fr; gap:2.5rem; }
  .stats-inner{ grid-template-columns:repeat(2,1fr); row-gap:2rem; }
  .footer-inner{ grid-template-columns:1fr; text-align:center; }
  .footer-links{ align-items:center; }
  .footer-legal{ text-align:center; }
}

@media (max-width: 760px){
  .main-nav{
    position:fixed; inset:0 0 0 auto; width:min(78vw, 320px);
    background:var(--navy-deep);
    flex-direction:column; align-items:flex-start; justify-content:flex-start;
    padding:6.5rem 2rem 2rem; gap:1.6rem;
    transform:translateX(100%);
    transition:transform .35s var(--ease);
    box-shadow:-10px 0 40px rgba(0,0,0,0.3);
  }
  .main-nav.is-open{ transform:translateX(0); }
  .nav-cta{ margin-top:0.5rem; }
  .nav-toggle{ display:flex; }
  .section{ padding:4.5rem 0; }
  .hero-content{ padding:7rem 1.5rem 4rem; }
}

@media (max-width: 560px){
  .stats-inner{ grid-template-columns:1fr 1fr; }
  .hero-actions{ flex-direction:column; align-items:stretch; }
}